}
	m, _ := f.Stat()
	// Mode should be copied
	assert.Equal(t, m.Mode(), 0o750)

	body, _ := io.ReadAll(f)
	// Contents should be copied
	assert.Equal(t, body, []byte("hello world"))
}

func TestCopy(t *testing.T) {
	copyTest(t, Copy)
}

func TestAtomicCopy(t *testing.T) {
	copyTest(t, AtomicCopy)
}

func TestAtomicWrite(t *testing.T) {
	d := t.TempDir()
	file := filepath.Join(d, "test")

            def testImplHolder = configurations.create("uasdf")
            def testCopy = configurations.testImplementation.copy()
            configurations.add(testCopy)
            testImplHolder.extendsFrom(testCopy)

            task assertCopyCanBeResolved {
                def resolved = testImplHolder
                doLast {

	// that depends on ptest. And so on, up the dependency tree.
	testCopy := map[*Package]*Package{preal: ptest}
	for _, p := range PackageList([]*Package{pmain}) {
		if p == preal {
			continue
		}
		// Copy on write.
		didSplit := p == pmain || p == pxtest || p == ptest
		split := func() {
			if didSplit {
				return
			}
			didSplit = true
			if testCopy[p] != nil {
				panic("recompileForTest loop")
			}

	}
}

func TestCloneNil(t *testing.T) {
	var m1 map[string]int
	mc := Clone(m1)
	if mc != nil {
		t.Errorf("Clone(%v) = %v, want %v", m1, mc, m1)
	}
}

func TestCopy(t *testing.T) {
	mc := Clone(m1)
	Copy(mc, mc)
	if !Equal(mc, m1) {
		t.Errorf("Copy(%v, %v) = %v, want %v", m1, m1, mc, m1)
	}
	Copy(mc, map[int]int{16: 32})

    result = CharStreams.asWriter(secretlyAWriter);
    assertSame(secretlyAWriter, result);
  }

  // CharStreams.copy has type specific optimizations for Readers,StringBuilders and Writers

  public void testCopy() throws IOException {
    StringBuilder builder = new StringBuilder();
    long copied =
        CharStreams.copy(
            wrapAsGenericReadable(new StringReader(ASCII)), wrapAsGenericAppendable(builder));

    result = CharStreams.asWriter(secretlyAWriter);
    assertSame(secretlyAWriter, result);
  }

  // CharStreams.copy has type specific optimizations for Readers,StringBuilders and Writers

  public void testCopy() throws IOException {
    StringBuilder builder = new StringBuilder();
    long copied =
        CharStreams.copy(
            wrapAsGenericReadable(new StringReader(ASCII)), wrapAsGenericAppendable(builder));

    for (int i = 0; i < 100; i++) {
      Object o = new Object();
      bf.put(o);
      assertTrue(bf.mightContain(o));
      assertTrue(bf.apply(o));
    }
  }

  public void testCopy() {
    BloomFilter<String> original = BloomFilter.create(Funnels.unencodedCharsFunnel(), 100);
    BloomFilter<String> copy = original.copy();
    assertNotSame(original, copy);
    assertEquals(original, copy);
  }

	WriterTo   // conflicts with and hides bytes.Buffer's WriterTo.
}

// Simple tests, primarily to verify the ReadFrom and WriteTo callouts inside Copy, CopyBuffer and CopyN.

func TestCopy(t *testing.T) {
	rb := new(Buffer)
	wb := new(Buffer)
	rb.WriteString("hello, world.")
	Copy(wb, rb)
	if wb.String() != "hello, world." {
		t.Errorf("Copy did not work properly")
	}
}

		ax := ValueOf(struct{ x []int }{test.orig}).Field(0)
		shouldPanic("using unexported field", func() { Append(ax, e0...) })
		shouldPanic("using unexported field", func() { AppendSlice(ax, e1) })
	}
}

func TestCopy(t *testing.T) {
	a := []int{1, 2, 3, 4, 10, 9, 8, 7}
	b := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44}
	c := []int{11, 22, 33, 44, 1010, 99, 88, 77, 66, 55, 44}
	for i := 0; i < len(b); i++ {
		if b[i] != c[i] {